Glaucoma is a disease of the eye that can lead to blindness and is the second leading cause of blindness worldwide. It often progresses without noticeable symptoms until significant vision loss occurs. However, once detected and treated, many people can maintain good vision. There are two main types of glaucoma: open-angle and closed-angle, which refer to the drainage system of the eye. Treatments focus on lowering eye pressure through medication, laser procedures, or surgery. Early detection is crucial, especially for those with a family history of glaucoma. People with uncontrolled diabetes are at higher risk for developing glaucoma, making regular eye exams important for early detection and treatment.